New address modes 5 to 7 for isoburn_set_msc1(), isoburn_get_mount_params(), isoburn_get_mount_params_v2()

libisoburn/burn_wrap.c

@@ -2091,25 +2091,115 @@ int isoburn_drive_set_msgs_submit(struct burn_drive *d,
 }
 
 
+/* YYYYMMDDhhmmsscc[LOC] */
+/* 2010040711405800 */
+static int isoburn_mktime_ecma119_time17(struct tm *erg, char *text, int flag)
+{
+ int i, l, num, utc= 1;
+ struct tm norm_tm;
+
+ memset(erg, 0, sizeof(*erg));
+ erg->tm_isdst= -1;
+ l= strlen(text);
+ if(l == 19) {
+   if(strcmp(text + 16, "LOC") != 0)
+     return(0);
+   utc= 0;
+   l= 16;
+ }
+ if(l != 16)
+   return(0);
+ for(i= 0; i < l; i++)
+   if(text[i] < '0' || text[i] > '9')
+     return(0);
+ num= 0;
+ for(i= 0; i < 4; i++)
+   num= num * 10 + text[i] - '0';
+ if(num < 1970 || num > 3000)
+   return(0);
+ erg->tm_year = num - 1900;
+ erg->tm_mon=  10*(text[4]-'0')+text[5]-'0'-1;
+ if(erg->tm_mon > 12)
+   return(0);
+ erg->tm_mday= 10*(text[6]-'0')+text[7]-'0';
+ if(erg->tm_mday > 31)
+   return(0);
+ erg->tm_hour= 10*(text[8]-'0')+text[9]-'0';
+ if(erg->tm_hour > 23)
+   return(0);
+ erg->tm_min=  10*(text[10]-'0')+text[11]-'0';
+ if(erg->tm_min > 59)
+   return(0);
+ erg->tm_sec= 10*(text[12]-'0')+text[13]-'0';
+ if(erg->tm_sec > 59)
+   return(0);
+ /* Let mktime(3) compute erg->tm_wday and erg->tm_yday */
+ memcpy(&norm_tm, erg, sizeof(struct tm));
+ mktime(&norm_tm);
+ erg->tm_wday= norm_tm.tm_wday;
+ erg->tm_yday= norm_tm.tm_yday;
+ return(1 + !utc);
+}
+
+
+/* Convert to time_t:
+   YYYYMMDDhhmmssccN (N = 15 minutes Offset from GMT: -48 West to +52 east)
+*/
+static int isoburn_decode_ecma119_time17(time_t *seconds, char *code, int flag)
+{
+ int ret;
+ char digits[17];
+ struct tm erg;
+
+ *seconds= 0;
+ strncpy(digits, code, 16);
+ digits[16]= 0;
+ ret= isoburn_mktime_ecma119_time17(&erg, digits, 0);
+ if(ret <= 0)
+   return(ret);
+ *seconds= mktime(&erg);
+
+ /* Revert ECMA-119 timezone offset */
+ *seconds-= (int) code[16] * 60 * 15;
+
+ /* Convert from local time to GMT */
+#ifdef HAVE_TM_GMTOFF
+ *seconds+= erg.tm_gmtoff;
+#else
+ if(erg.tm_isdst < 0)
+   erg.tm_isdst = 0;
+#ifndef Libburnia_timezonE
+#define Libburnia_timezonE timezone
+#endif
+ *seconds-= Libburnia_timezonE - erg.tm_isdst * 3600;
+#endif
+
+ return(1);
+}
+
+ 
 /* @param flag bit0= with adr_mode 3: adr_value might be 16 blocks too high
                bit1= insist in seeing a disc object with at least one session
                bit2= with adr_mode 4: use adr_value as regular expression
+                     with adr_mode 5 to 7: use creation time rather than
+                                           modification time
 */
 int isoburn_set_msc1(struct burn_drive *d, int adr_mode, char *adr_value,
                      int flag)
 {
  int ret, num_sessions= 0, num_tracks, i, j, total_tracks;
- int re_valid= 0, track_count= 0;
+ int re_valid= 0, track_count= 0, info_type;
  off_t adr_num, lba, best_lba, size;
  double adr_double;
- time_t start_time= 0, last_pacifier= 0, now;
+ time_t start_time= 0, last_pacifier= 0, now, seconds;
  char volid[33], *msg= NULL;
  struct isoburn *o;
  struct isoburn_toc_disc *disc= NULL;
  struct isoburn_toc_session **sessions= NULL;
  struct isoburn_toc_track **tracks= NULL;
- static char mode_names[][20]= {"auto", "session", "track", "lba", "volid"};
+ static char mode_names[][20]= {"auto", "session", "track", "lba", "volid",
- static int max_mode_names= 4;
+                                "at_time", "not_after", "not_before"};
+ static int max_mode_names= 7;
  regex_t re;
  regmatch_t match[1];
  enum burn_disc_status s;
@@ -2136,7 +2226,8 @@ int isoburn_set_msc1(struct burn_drive *d, int adr_mode, char *adr_value,
 not_found:;
      if(adr_mode<0 || adr_mode>max_mode_names)
        goto unknown_mode;
-     sprintf(msg, "Failed to find %s %s", mode_names[adr_mode],
+     sprintf(msg, "Failed to find \"%s\" \"%s%s\"", mode_names[adr_mode],
+                  adr_mode >= 5 && adr_mode <= 7 ? "=" : "",
                   strlen(adr_value)<=80 ?  adr_value : "-oversized-string-");
      isoburn_msgs_submit(o, 0x00060000, msg, 0, "FAILURE", 0);
      ret= 0; goto ex;
@@ -2196,9 +2287,9 @@ not_found:;
      if(ret==2)
        o->fabricated_msc1-= 16;
    }
- } else if(adr_mode==4) {
+ } else if(adr_mode >= 4 && adr_mode <= 7) {
    /* search for volume id that is equal to adr_value */
-   if(flag & 4) {
+   if(adr_mode == 4 && (flag & 4)) {
      ret= regcomp(&re, adr_value, 0);
      if(ret != 0)
        flag&= ~4;
@@ -2223,12 +2314,14 @@ not_found:;
        ret= isoburn_toc_track_get_emul_v2(tracks[0], &lba, &size, volid, 0);
        if(ret < 0)
      continue;
-       if(ret == 0) {
+       if(ret == 0 || (adr_mode >= 5 && adr_mode <= 7)) {
          isoburn_get_track_lba(tracks[0], &lba, 0);
-         ret= isoburn_read_iso_head_v2(d, lba, &size, volid, 1);
+         info_type= (adr_mode == 4 ? 1 : 3 + !!(flag & 4));
+         ret= isoburn_read_iso_head_v2(d, lba, &size, volid, info_type);
          if(ret<=0)
      continue;
        }
+       if(adr_mode == 4) {
          if(flag & 4) {
            ret= regexec(&re, volid, 1, match, 0);
            if(ret != 0)
@@ -2237,11 +2330,30 @@ not_found:;
            if(strcmp(volid, adr_value)!=0)
      continue;
          }
+       } else {
+         /* Convert volid text to seconds GMT */
+         ret= isoburn_decode_ecma119_time17(&seconds, volid, 0);
+         if(ret <= 0)
+     continue;
+         if(adr_mode == 5) {
+           if(seconds != (time_t) adr_num)
+     continue;
+         } else if(adr_mode == 6) {
+           if(seconds > (time_t) adr_num)
+     continue;
+         } else if(adr_mode == 7) {
+           if(seconds >= (time_t) adr_num) {
+             best_lba= lba;
+             goto take_best_lba;
+           }
+         }
+       }
        best_lba= lba;
      }
    }
    if(best_lba<0)
      goto not_found;
+take_best_lba:;
    o->fabricated_msc1= best_lba;
 
  } else {

libisoburn/libisoburn.h

@@ -552,6 +552,14 @@ void isoburn_disc_erase(struct burn_drive *drive, int fast);
                     3= adr_value itself is the lba to be used
                     4= start lba of last session with volume id
                        given by adr_value
+                    @since 1.5.8 :
+                    5= start lba of last session with modification time
+                       exactly as given by adr_value. adr_value is seconds
+                       since 1970 GMT (i.e. time_t as decimal number string)
+                    6= start lba of last session with modification time
+                       not after adr_value (seconds after 1970 GMT)
+                    7= start lba of first session with modification time
+                       not before adr_value (seconds after 1970 GMT)
     @param adr_value A string describing the value to be eventually used.
     @param flag Bitfield for control purposes.
                 bit0= @since 0.2.2
@@ -560,6 +568,8 @@ void isoburn_disc_erase(struct burn_drive *drive, int fast);
                       at adr_value-16 and eventually adjust setting. 
                 bit1= insist in seeing a disc object with at least one session
                 bit2= with adr_mode 4: use adr_value as regular expression
+                      with adr_mode 5 to 7: use creation time rather than
+                                            modification time
 */
 int isoburn_set_msc1(struct burn_drive *d, int adr_mode, char *adr_value,
                      int flag);
@@ -784,6 +794,14 @@ int isoburn_read_iso_head_v2(struct burn_drive *d, off_t lba,
                     3= adr_value itself is the lba to be used
                     4= start lba of last session with volume id
                        given by adr_value
+                    @since 1.5.8 :
+                    5= start lba of last session with modification time
+                       exactly as given by adr_value. adr_value is seconds
+                       since 1970 GMT (i.e. time_t as decimal number string)
+                    6= start lba of last session with modification time
+                       not after adr_value (seconds after 1970 GMT)
+                    7= start lba of first session with modification time
+                       not before adr_value (seconds after 1970 GMT)
     @param adr_value A string describing the value to be eventually used.
     @param lba       returns the block address of the entity, -1 means invalid
     @param track     returns the track number of the entity, -1 means invalid
@@ -791,6 +809,8 @@ int isoburn_read_iso_head_v2(struct burn_drive *d, off_t lba,
     @param volid     returns the volume id of the entity if it is a ISO session
     @param flag      Bitfield for control purposes.
                      bit2= with adr_mode 4: use adr_value as regular expression
+                           with adr_mode 5 to 7: use creation time rather than
+                                                 modification time
     @return          <=0 error , 1 ok, ISO session, 2 ok, not an ISO session
 */
 int isoburn_get_mount_params(struct burn_drive *d,

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2024.06.28.144204"
+#define Xorriso_timestamP "2024.06.29.162751"